431
FNUS75 KBYZ 081321
FWSBYZ
SPOT FORECAST FOR BATTLE RIDGE HAND PILES...US FOREST SERVICE
NATIONAL WEATHER SERVICE BILLINGS MT
621 AM MST MON DEC 8 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 MST ON DECEMBER 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO 3 PM
MST TUESDAY...
DISCUSSION
STRONG WINDS WILL IMPACT THE SITE AT TIMES THROUGH TUESDAY MORNING.
THE STRONGEST WINDS ARE EXPECTED AFTER MIDNIGHT TONIGHT, WITH A
70% CHANCE FOR GUSTS OF 40-50 MPH. TEMPERATURES ABOVE FREEZING WILL
LIMIT SNOW POTENTIAL AND LEAD TO MOSTLY MIXED RAIN/SNOW SHOWERS
(20% CHANCE) THROUGH TUESDAY MORNING. AS TEMPS DECREASE TUESDAY
AFTERNOON, PRECIPITATION WILL BECOME MOSTLY SNOW. EXPECT SEVERAL
INCHES OF ACCUMULATING SNOW TUESDAY EVENING THROUGH WEDNESDAY
MORNING.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....37-41.
MIN HUMIDITY........44-48 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 TO 40
MPH.
RIDGETOP...........WEST AROUND 50 MPH INCREASING TO AROUND 60 MPH
LATE IN THE AFTERNOON.
MIXING HEIGHT.......INCREASING TO 1900 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 25 TO 35 MPH.
TIME (MST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........77 76 80 79 73 70 72 62 71 73
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0
TEMP............30 30 31 31 34 34 35 37 35 35
RH..............55 53 52 50 50 48 47 47 47 47
20 FT WIND DIR..W W W W W W W W W W
20 FT WIND SPD..18 15 12 10 10 11 11 11 10 10
20 FT WIND GUST.38 36 32 30 30 30 30 31 30 28
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF MIXED SHOWERS IN
THE EVENING. RAIN SHOWERS LIKELY OVERNIGHT.
CWR.................INCREASING TO 50 PERCENT EARLY IN THE MORNING.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....32-36.
MAX HUMIDITY........71-75 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO
35 TO 45 MPH.
RIDGETOP...........SOUTHWEST AROUND 60 MPH INCREASING TO AROUND 70
MPH EARLY IN THE MORNING.
MIXING HEIGHT.......DECREASING TO 100 FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 35 MPH.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........71 70 78 79 77 69 77 60 58 62 80 82
WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH CHC LKY
WEATHER TYPE....RS RS RS RS RS RS RS RS RS RS RW RW
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............36 36 36 36 37 35 38 38 39 40 40 40
RH..............63 63 65 66 66 66 66 67 68 68 68 68
20 FT WIND DIR..W SW SW SW SW SW SW SW SW SW W W
20 FT WIND SPD..11 13 14 15 15 15 16 16 18 18 20 20
20 FT WIND GUST.30 33 34 37 38 38 38 39 41 41 43 43
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY IN THE
MORNING. SNOW SHOWERS LIKELY IN THE AFTERNOON.
CWR.................80 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....39-43.
MIN HUMIDITY........61-65 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 15 TO 25 MPH WITH GUSTS TO 40 TO
50 MPH, DECREASING IN THE AFTERNOON.
RIDGETOP...........WEST AROUND 70 MPH DECREASING TO 30 TO 40 MPH
LATE IN THE AFTERNOON.
MIXING HEIGHT.......INCREASING TO 2300 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 30 TO 40 MPH DECREASING TO 20 TO 30 MPH
LATE IN THE AFTERNOON.
TIME (MST) 6 AM 9 AM NOON 3 PM
SKY (%).........84 82 89 85
WEATHER COV.....LIKELY LIKELY CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR SNSHWR SNSHWR
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............40 39 37 34
RH..............71 75 73 66
20 FT WIND......W 20G45 W 18G40 W 16G28 W 12G24
FORECASTER...ARCHER
REQUESTED BY...ANDRE RAY
TYPE OF REQUEST...PRESCRIBED
.TAG 2527078.0/BYZ
.DELDT 12/08/25
.FORMATTERVERSION 2.0.0
.EMAIL ANDRE.RAY@USDA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page